diff --git a/src/ZonyLrcTools.Cli/Infrastructure/Tag/BlockWordDictionary.cs b/src/ZonyLrcTools.Cli/Infrastructure/Tag/BlockWordDictionary.cs
index 53736b5..5d93000 100644
--- a/src/ZonyLrcTools.Cli/Infrastructure/Tag/BlockWordDictionary.cs
+++ b/src/ZonyLrcTools.Cli/Infrastructure/Tag/BlockWordDictionary.cs
@@ -8,6 +8,7 @@ using ZonyLrcTools.Cli.Infrastructure.DependencyInject;
 
 namespace ZonyLrcTools.Cli.Infrastructure.Tag
 {
+    /// <inheritdoc cref="ZonyLrcTools.Cli.Infrastructure.Tag.IBlockWordDictionary" />
     public class BlockWordDictionary : IBlockWordDictionary, ISingletonDependency
     {
         private readonly ToolOptions _options;
diff --git a/src/ZonyLrcTools.Cli/Infrastructure/Tag/BlockWordOption.cs b/src/ZonyLrcTools.Cli/Infrastructure/Tag/BlockWordOption.cs
index 51f40af..6805b76 100644
--- a/src/ZonyLrcTools.Cli/Infrastructure/Tag/BlockWordOption.cs
+++ b/src/ZonyLrcTools.Cli/Infrastructure/Tag/BlockWordOption.cs
@@ -1,5 +1,8 @@
 namespace ZonyLrcTools.Cli.Infrastructure.Tag
 {
+    /// <summary>
+    /// 屏蔽词选项类。
+    /// </summary>
     public class BlockWordOption
     {
         /// <summary>
diff --git a/src/ZonyLrcTools.Cli/Infrastructure/Tag/IBlockWordDictionary.cs b/src/ZonyLrcTools.Cli/Infrastructure/Tag/IBlockWordDictionary.cs
index 6e7960a..3f351ab 100644
--- a/src/ZonyLrcTools.Cli/Infrastructure/Tag/IBlockWordDictionary.cs
+++ b/src/ZonyLrcTools.Cli/Infrastructure/Tag/IBlockWordDictionary.cs
@@ -1,7 +1,18 @@
 namespace ZonyLrcTools.Cli.Infrastructure.Tag
 {
+    /// <summary>
+    /// 屏蔽词字典。
+    /// </summary>
     public interface IBlockWordDictionary
     {
+        /// <summary>
+        /// 根据 <paramref name="key"/> 获得屏蔽词结果。
+        /// </summary>
+        /// <remarks>
+        /// 例: 原歌曲的 "fuckking" ，在网易云实际为 "***kking"。
+        /// </remarks>
+        /// <param name="key">原始单词。</param>
+        /// <returns>原始单词对应的屏蔽词。</returns>
         string GetValue(string key);
     }
 }
\ No newline at end of file